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@article{1503432,
author = {Štveráková, Dana and Šedo, Ondrej and Benešík, Martin and Zdráhal, Zbyněk and Doškař, Jiří and Pantůček, Roman},
article_location = {BASEL},
article_number = {4},
doi = {http://dx.doi.org/10.3390/v10040176},
keywords = {MALDI-MS; Staphylococcus; bacteriophages; phage therapy; Kayvirus; Viral proteins},
language = {eng},
issn = {1999-4915},
journal = {VIRUSES-BASEL},
title = {Rapid identification of Intact staphylococcal bacteriophages using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry},
url = {https://www.mdpi.com/1999-4915/10/4/176},
volume = {10},
year = {2018}
}
TY - JOUR
ID - 1503432
AU - Štveráková, Dana - Šedo, Ondrej - Benešík, Martin - Zdráhal, Zbyněk - Doškař, Jiří - Pantůček, Roman
PY - 2018
TI - Rapid identification of Intact staphylococcal bacteriophages using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry
JF - VIRUSES-BASEL
VL - 10
IS - 4
SP - 176
EP - 176
PB - MDPI AG
SN - 19994915
KW - MALDI-MS
KW - Staphylococcus
KW - bacteriophages
KW - phage therapy
KW - Kayvirus
KW - Viral proteins
UR - https://www.mdpi.com/1999-4915/10/4/176
L2 - https://www.mdpi.com/1999-4915/10/4/176
N2 - Staphylococcus aureus is a major causative agent of infections associated with hospital environments, where antibiotic-resistant strains have emerged as a significant threat. Phage therapy could offer a safe and effective alternative to antibiotics. Phage preparations should comply with quality and safety requirements; therefore, it is important to develop efficient production control technologies. This study was conducted to develop and evaluate a rapid and reliable method for identifying staphylococcal bacteriophages, based on detecting their specific proteins using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) profiling that is among the suggested methods for meeting the regulations of pharmaceutical authorities. Five different phage purification techniques were tested in combination with two MALDI-TOF MS matrices. Phages, either purified by CsC1 density gradient centrifugation or as resuspended phage pellets, yielded mass spectra with the highest information value if ferulic acid was used as the MALDI matrix. Phage tail and capsid proteins yielded the strongest signals whereas the culture conditions had no effect on mass spectral quality. Thirty-seven phages from Myoviridae, Siphoviridae or Podoviridae families were analysed, including 23 siphophages belonging to the International Typing Set for human strains of S. aureus, as well as phages in preparations produced by Microgen, Bohemia Pharmaceuticals and MB Pharma. The data obtained demonstrate that MALDI-TOF MS can be used to effectively distinguish between Staphylococcus-specific bacteriophages.
ER -
ŠTVERÁKOVÁ, Dana, Ondrej ŠEDO, Martin BENEŠÍK, Zbyněk ZDRÁHAL, Jiří DOŠKAŘ a Roman PANTŮČEK. Rapid identification of Intact staphylococcal bacteriophages using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. \textit{VIRUSES-BASEL}. BASEL: MDPI AG, roč.~10, č.~4, s.~176-194. ISSN~1999-4915. doi:10.3390/v10040176. 2018.
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